Goodwill and Other Intangible Assets (Tables)

12 Months Ended

May 31, 2013

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Changes in Carrying Amount of Goodwill

The following tables summarize the changes in the carrying amount of goodwill:

(in millions)	May 31, 2013		May 31, 2012			May 31, 2011
Beginning of period	$	4,114.4	$	4,470.1		$	4,707.5
Goodwill acquired	11.9		—			—
Currency translation	(52.4)		(63.8		)	185.4
Impairment charge	(473.0)		(291.9		)	(422.8		)
End of period	$	3,600.9	$	4,114.4		$	4,470.1

(in millions)	May 31, 2013		May 31, 2012		May 31, 2011
Gross carrying amount	$	5,284.2	$	5,324.7	$	5,388.5
Accumulated impairment losses	(1,683.3)		(1,210.3)		(918.4)
Net carrying amount	$	3,600.9	$	4,114.4	$	4,470.1

Schedule of Intangible Assets

Intangible assets consist of the following at May 31, 2013 and 2012:

	May 31, 2013
(in millions)	Gross Carrying Amount		Impairment Charge			New Carrying Amount		Accumulated Amortization			Impairment Charge		Net Carrying Amount
Core technology	$	1,772.6	$	(39.0	)	$	1,733.6	$	(481.1	)	$	4.1	$	1,256.6
Completed technology	628.8		(48.5		)	580.3		(254.9		)	36.7		362.1
Product trade names	204.2		—			204.2		(65.9		)	—		138.3
Customer relationships	2,429.5		(46.1)			2,383.4		(828.4		)	9.9		1,564.9
Non-compete contracts	4.6		—			4.6		(3.8		)	—		0.8
Sub-total	5,039.7		(133.6)			4,906.1		(1,634.1		)	50.7		3,322.7
Corporate trade names	319.0		(11.5)			307.5		—			—		307.5
Total	$	5,358.7	$	(145.1	)	$	5,213.6	$	(1,634.1	)	$	50.7	$	3,630.2

	May 31, 2012
(in millions)	Gross Carrying Amount		Impairment Charge			New Carrying Amount		Accumulated Amortization			Impairment Charge		Net Carrying Amount
Core technology	$	1,909.5	$	(185.7	)	$	1,723.8	$	(469.0	)	$	74.3	$	1,329.1
Completed technology	610.6		—			610.6		(210.2)			—		400.4
Product trade names	189.9		—			189.9		(53.7)			—		136.2
Customer relationships	2,725.4		(306.8)			2,418.6		(871.9)			191.6		1,738.3
Non-compete contracts	4.6		—			4.6		(3.1)			—		1.5
Sub-total	5,440.0		(492.5)			4,947.5		(1,607.9)			265.9		3,605.5
Corporate trade names	336.2		(11.3)			324.9		—			—		324.9
Total	$	5,776.2	$	(503.8	)	$	5,272.4	$	(1,607.9	)	$	265.9	$	3,930.4

Weighted Average Useful Life of Intangible Assets

The weighted average useful life of the intangibles at May 31, 2013 is as follows:

	Weighted Average Useful Life
Core technology	16 Years
Completed technology	10 Years
Product trade names	14 Years
Customer relationships	15 Years
Non-compete contracts	2 Years
Corporate trade names	Indefinite life